diff --git a/sys/arch/sparc64/dev/event_var.h b/sys/arch/sparc64/dev/event_var.h
deleted file mode 100644
index 67154b32c076..000000000000
--- a/sys/arch/sparc64/dev/event_var.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*	$NetBSD: event_var.h,v 1.1.1.1 1998/06/20 04:58:51 eeh Exp $ */
-
-/*
- * Copyright (c) 1992, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Lawrence Berkeley Laboratory.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *	This product includes software developed by the University of
- *	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)event_var.h	8.1 (Berkeley) 6/11/93
- */
-
-/*
- * Internal `Firm_event' interface for the keyboard and mouse drivers.
- * The drivers are expected not to place events in the queue above spltty(),
- * i.e., are expected to run off serial ports.
- */
-
-/* EV_QSIZE should be a power of two so that `%' is fast */
-#define	EV_QSIZE	256	/* may need tuning; this uses 2k */
-
-struct evvar {
-	u_int	ev_get;		/* get (read) index (modified synchronously) */
-	volatile u_int ev_put;	/* put (write) index (modified by interrupt) */
-	struct	selinfo ev_sel;	/* process selecting */
-	struct	proc *ev_io;	/* process that opened queue (can get SIGIO) */
-	char	ev_wanted;	/* wake up on input ready */
-	char	ev_async;	/* send SIGIO on input ready */
-	struct	firm_event *ev_q;/* circular buffer (queue) of events */
-};
-
-#define	splev()	spltty()
-
-#define	EV_WAKEUP(ev) { \
-	selwakeup(&(ev)->ev_sel); \
-	if ((ev)->ev_wanted) { \
-		(ev)->ev_wanted = 0; \
-		wakeup((caddr_t)(ev)); \
-	} \
-	if ((ev)->ev_async) \
-		psignal((ev)->ev_io, SIGIO); \
-}
-
-void	ev_init __P((struct evvar *));
-void	ev_fini __P((struct evvar *));
-int	ev_read __P((struct evvar *, struct uio *, int));
-int	ev_select __P((struct evvar *, int, struct proc *));
-
-/*
- * PEVENT is set just above PSOCK, which is just above TTIPRI, on the
- * theory that mouse and keyboard `user' input should be quick.
- */
-#define	PEVENT	23